Perhaps you should try some spelling variations:
hoc thieu » toc thieu
tranh qua » tranh cua, thanh qua, trinh qua
qua trong » quan trong, qua trinh, qua song
ho chieu » theo chieu, doi chieu, mot chieu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((ho chieu) or (hoc thieu))) or (hoc hien)) xanh - canh tranh qua trong cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (hoc thieu))) OR (hoc hien)) xanh - canh tranh qua trong cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (hoc thieu))) or (hoc hien)) xanh - canh tranh qua trong cong dan toan ban*.